《Unit 3 Computers》 Using Language Ⅰ.单词拼写 1．He gave a _____(信号)to the driver to carry on. 2．His father is a baseball _____(教练)． 3．My father bought an _____(电子的)dictionary for me. 4．Generosity is part of the American _____(性格，特征)． 5．This is a new _____(类型)of machine，with lots of meters on it. 6．Could you teach me how to _____(下载)music from the Internet 7．His first _____(出现)on stage was at the age of three. 8．Have you _____(拖)the floor 9．The little boy was so _____(调皮的)that his teacher didn't know what to do with him. 10．Let me know if any difficulties _____(出现)． Ⅱ.阅读理解 A Shopping online in search of a bargain(便宜货)can often leave you feeling disappointed or out of pocket rather than satisfied. You can avoid this by following our simple advice： PRODUCT—Before you look for the cheapest price you need to decide what product you actually want. You can do this by researching online，the easiest way is to Google for different products so that you can decide on what would be best for you. SEARCH & COMPARE —You are now ready to use a comparison website to try and find out the best prices. You should never just use one comparison website，using two or more will give you a balanced view of the market. Comparison websites are necessary. You need to first check out what kind of technology a site uses. Although the idea behind Froogle(now called Google Products)is attractive，the technology it uses is not as advanced as sites such as Kelkoo and Pricerunner. Froogle uses a regular search engine. And don't expect price comparison sites to be a sure－fire way of getting a bargain. The sites will only show products from companies who pay them. This is not necessarily a bad thing—suppliers value their reputation(名声)and their business relationships. AND SEARCH AGAIN—Before you buy you should search the product using a price comparison service，then try again just using a standard search engine—it might find the product with a cheaper price. If you use Firefox to surf the web then there's an add－on (附加的)tool that you can download which finds the cheapest price for a product for you. It is called the Invisible Hand and it is free to download. For example，if you're shopping online at Amazon，the Invisible Hand will pop up and tell you that it is ￡56 cheaper at Dixons. The tool will only work when you are looking at products，so it shouldn't disturb your day to day internet surfing. The add－on is supported by well－known brands(品牌)such as BT，Comet and HMV but obviously it won't search every single site out there，so it is still best to use a comparison site in addition to the tool. 1．According to the passage，how to decide what product to buy A．By shopping online. B．By searching online. C．By looking for the cheapest price. D．By deciding which is best. 2．We can learn from the passage that _____． A．we don't need to use two or more comparison websites B．comparison websites often give us wrong vie ... ...
